Pipe vise



Jan. 15, 1924- G. W. BUFFORD PIPE VISE Filed July 8. 1922 INVENTOR fzyLQ :2

By Altomeys, 7

Patent Jan. 15, i.

GEORGE W. BUFFOE/D, OF BUFFALO, N'EW YQRK, ASSIGNOR TO .7. H. WILLIAMS & (10., OF BROOKLYN, NEW YORK, A CORPORATION OF NEW YORK.

PIPE VISE.

Application filed. July 8, 1922. Serial No. 573,702.

To all whom it may concern:

Be it known that I, Groncn W. Borrono, a citizen of the United States of America, residing at Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Pipe Vises, of which the following is a specification.

The present invention relates to'pipe vises and more particularly to such vises employin a chain as one of the clamping elements.

11 the devices of this kind now in use, the operating means for fastening and unfastening the clamping chain, is arranged below the bench on which the vise is mounted. This construction necessitates the adjustment of the operating means substam tially entirely through the sense of touch and in the course of making the adjustments it frequently happens that the knuckles of the operator become bruised.

According to the present invention I provide operatmg means in the nature of an adjusting screw extending upwardly throu h the base or bed late of the vise and operalfie from above the ench. The operating means being thusvisible to the operator the danger of bruising the knuckles is entirely eliminated B having the operating means operable rom above the bench, the adjustment of the chain can also be more quickly accomplished. The invention also includes other 7 features which will be hereinafter more fully described.

The preferred embodiment of my invention is disclosed in the accompanying draw- 1n? wherein;

igure 1 is a frontelevation of the vise showing a pipe clamped therein.

F1 2 is a top plan view of the vise with the 0 sin omitted.

Fig. 3 is a side elevation of the vise.

Referringfo the drawings let A. indicate the base or ed plate of the device, which as herein shown is formed with openings a through which suitable securing means may be passed to fasten the vise to a work bench. To properly osition the vise with res set to a bench, t e underside of the bed p ate is provided with lugs 11 approximately midway its length for engaging the edge of the bench. When mounted, the forward end B of the bed plate A will overh 1 the bench socket F 'into sai for a purpose, presently to be made apparent.

The bed plate end portion B is formed with alined openings C and C for permitting a clamping chain D to pass therethrough, and with a pair of spaced jaws E flanking said openings. The upper surfaces of the jaws are preferably concave and serrated as indicated by the letter e, and adapted for cooperation'with the chain D to clamp pipes, rods, or other elements having a curved or c lindrical surface.

The chain which may be of any construction, is preferably formed with its pivot pins projecting at each sideof the chain as shown at d, to form studs for individual engagement with recesses (not shown) formed in the under side of the bed plate, to adjust the active length of the chain. One end of the chain is connected to a socket F preferably by a pivotal connection and said socket in turn is swivelled on one end of an adjusting screw G extending through a tapped In C projecting outwardly from the bed p ate end portion B. The swivel connection between the two members may be of any preferred construction and as herein shown is formed by'a circumferential groove 9 near the end of member G and a pin extendin through the groove. he ad usting screw G is operable from above the bed plate of the vise and is formed at its free end with a slidably mounted pin g which provides a suitable handle for operating the adjusting screw. In order that the adjusting screw shall not interferewith the work to be clamped within the vise, it is preferable that said adjusting screw be arr'an ed at an incline or obliquely to the bed p ate of the vise as best shown in Fig. 1 of the drawings. To make this construction feasible as a manufacturing proposition, the lug C is formed at an angle to the bed plate, with the hole in said lug extending perpendicularly therethrough.

In the operation of the device, the work, say a pipe as shown in Fig. 1, is first placed on the jaws E and the chain D then passed around the work and a pivot d caused to engage in the recesses provided for said purpose in the underside of the bed plate.

he adjusting screw G is then turned until the chain tightly clamps the Work against the jaws E. To release the work, the adjusting screw is given a few turns in the opposite direction to loosen the chain.

While I have shown and described the preferred embodiment of my invention, I do not desire to be limited to the specific construction disclosed, since various changes may be made without departing from the spirit of the invention.

What I claim is:

l. A pipe vise comprising a bed plate having a screw threaded opening therein, an achusting screw extending through said opening, a chain adapted to extend across the bed plate, one terminal link of said chain carrying a socket member and the ad justing screw being swi-veled to the socket member.

2. A pipe vise comprising a bed plate, an adjusting screw operable from above the bed plate extending therethrough at an obtuse angle to the plane of the bed plate, a chain adapted to extend across the bed plate, one terminal link of said chain carrying a socket member and the lower end of the adjusting screw being swiveled to the socket member.

In witness whereof, I have hereunto signed my name.

GEORGE W. BUFFORD. 

